In high school, a friend and I served as campaign managers for one of our friends who was involved in student government.
Among our most popular campaign poster ideas:

We had a girl get a whole bunch of boxes of Snausages and cut all of the cartoon dogs out. Then we had her put the little Snausage dogs all over a poster. It was just covered with that little Snausage dog with little text bubbles that said 'Snausages.' Except one little dog down in the corner. His text bubble said 'Vote for Joe.'

Another classic was — 'Vote for Joe: He doesn't pick his nose anymore.'